Major League Baseball has secured a cooperative agreement with Biogenesis founder Tony Bosch, according to ESPN.com.

Bosch and the Miami-area clinic is at the center of baseball's ongoing performance-enhancing drug scandal. His lawyers met with MLB for several hours yesterday, turning over some documents, according to ESPN.com's T.J. Quinn.

However, an attorney for another potential key witness has accused the league of "bullying" his client.

Carlos Acevedo, who was named in MLB's civil suit along with Bosch and three others, was a former partner with Bosch in the clinic. He could be helpful in corroborating information from Bosch, ESPN.com notes. Acevado's attorney, Martin Beguiristain told ESPN.com he has filed a motion to have his client dismissed from the suit.

Beguiristain told ESPN.com he has spoken with MLB officials, but that officials have yet to meet with Acevedo or make an offer similar to what Bosch received for his cooperation. Baseball has agreed to drop the lawsuit it filed against Bosch with his cooperation, according to ESPN. It has been reported that MLB is attempting to get other past Bosch associates cooperation.

"They haven't sat down with me, much less got anywhere near my client, other than sending investigators to his house to bang on the door," Beguiristain told ESPN.com. "And threatening him and intimidating him. It is like they think they are the federal government. No, they went about this all wrong in regards to my client.

"What they have done is made a very strong enemy. Carlos Acevedo is a very strong enemy. He is a broke, broke, broke little nothing individual. But boy, what they have done is extremely impolite. He doesn't have any money. He doesn't have anything to lose. It is not good to bully somebody that has nothing."

MLB will reportedly pursue lengthy drug suspensions for Alex Rodriguez, Ryan Braunand about 20 other players who have been linked to the defunct anti-aging clinic in South Florida.